exam 3 p Flashcards
which area of the acetabulum is formed by the ischium
posteroinferior
angle of inclination of femur
125
where does the femoral head contact the articular surface when leg is not bearing weight (swing phase)
the outer margin of the semilunar surface only
what type of cartilage covers the acetabulum surface
hyaline
which bony structure is the labrum of the hip attached
acetabulum
the hip joint is a
synarthrodial ball and socket
which muscle shares its proximal attachment with the long head of biceps femoris tendon
semitendinosus (on ischial tuberosity)
which peripheral nerve innervates the hamstring part of adductor magnus
tibial division of the sciatic nerve
what are the actions of the pectineus muscle on the hip joint
flexion and internal rotation
which muscle attaches to the lateral aspect of the superior rim of acetabulum
indirect head of rectus femoris
which muscle attaches to ASIS
sartorius
which muscle attaches to the AIIS
direct head of rectus femoris
what motion happens at the hip joint to produce anterior pelvic tilt
flexion
at what angle of hip abduction are torques the highest
0 degrees
which rotational movements of the hip occur in the horizontal plane
internal/external rotation
what is a negative biomechanical consequence of coxa valga orientation of femur
decreased moment arm for abductor muscles
what structure of femur does the popliteus tendon attach
lateral condyle
where is the odd facet located on the articular surface of patella
medial aspect
where is the adductor tubercle of the femur located
superior to medial epicondyle
which meniscus has its roots attaching farthest apart in the intercondylar area
medial
which ligament attaches to the lateral aspect of the medial femoral condyle within the intercondylar fossa
PCL
which ligament is the major passive restraint to lateral movement of the patella
medial patellofemoral ligament
what is the distal attachment site of the fibular lateral collateral ligament
head of fibula
which tendon attaches to the anterior surface of the patella
rectus femoris
which structure of the knee attaches to the anterolateral tubercle of the tibia
IT band
distal attachment of biceps femoris
fibular head
which muscle has an action that unlocks knee by internally rotation the tibia
popliteus
which quad muscle has obliquely oriented fibers that attach to the patella to balance laterally directed forces during knee flexion
vastus medialis
which muscle of the anterior compartment of the thigh can contribute to flexion
sartorius
which amount of knee flexion causes the odd facet of patella to engage with the femur
135 degrees
which type of load is increased at the knee joint when there is weakness in hip abduction forces
valgus
what bony structure serves as landmarks in the clinical Q angle measurement
ASIS, patella, tibial tuberosity
during which range of knee flexion/extension does the screw home mechanism occur
0-10 degrees
Which group of muscles can add dyanmic stability against a valgus force at the knee joint, thereby sparing the
medial collateral ligament
pes anserine
Which metatarsal has a prominent tuberosity at its base
5th
Which component of the talus articulates with the navicular at the talonavicular joint?
head
Which ligament supports the head of the talus during weight-bearing of the foot?
plantar calcaneonavicular
Which ankle ligament is most commonly injured with excessive inversion AND dorsiflexion of the ankle
calcaneofibular
What is the proximal attachment of the deltoid ligament?
medial malleolus
Which ligament of the ankle is injured by inversion and plantar flexion of the ankle?
anterior talofibular
which muscle attaches to navicular
tibialis posterior
which muscle can plantarflex ankle and evert foot
fibularis longus
which tendon passes in a groove on the inferolateral surface of the cuboid?
fibularis longus
which muscle can dorsiflex the ankle AND invert the foot?
tibialis anterior
major function of intrinsic muscles of foot
reinforce longitudinal arches
Which movements of the foot and ankle occur in the coronal plane?
inversion and eversion
what movement of the hindfoot can compensate for a lack of dorsiflexion range at the ankle?
pronation
movement of the 1st metatarsophalangeal joint increases the tension on the plantar aponeurosis?
Extension
which movements of foot and ankle occur in horizontal plane
abd/adduction
which extrinsic muscle is the major reinforcement of medial longitudinal arch
tibialis posterior
